Abstract：This paper focuses on structural-lithological reservoir interpretation on Lixian slope in Raoyang sag, Jizhong Depression, Bohai Bay Basin. According to stratigraphic-lithologic reservoir characteristics of gentle slope belt and geologic characteristic of Lixian slope, we use four technical series. Firstly, using virtual reality technology, we conduct fine structure interpretation of tectonic setting of Lixian slope. We have found 3 large nosing structures with east-west direction. Secondly, using the sequence stratigraphy method, we describe exactly strati-lithologic traps, and we have found favorable facies belt of lithologic reservoir under the control of sequence stratigraphic framework. Thirdly, using multi-attributes such as coherence, curvature, edge detection, and attribute fusion, we describe minor faults and low-relief traps. Fourthly, using logging-constrained inversion and seismic attributes, we predict exactly reservoir boundaries. Finaly, this study has made a great success in the area, and one hundred million tons of oil reserves have been discovered.
